Errors related to d3dx9_31.dll can arise for a few different different reasons. For instance, a faulty application, d3dx9_31.dll has been deleted or misplaced, corrupted by malicious software present on your PC or a damaged Windows registry.
The most commonly occurring error messages are:
In the vast majority of cases, the solution is to properly reinstall d3dx9_31.dll on your PC, to the Windows system folder. Alternatively, some programs, notably PC games, require that the DLL file is placed in the game/application installation folder.
For detailed installation instructions, see our FAQ.
D3dx9_31.dll errors are associated with problems with “Microsoft DirectX” due to the fact that D3dx9_31.dll is one of many files that are required to function and to be in its right place, in order for “Microsoft DirectX” to work properly.
By downloading and installing the D3dx9_31.dll file you can solve your problems that are caused by a missing or malfunctioning file.
If it for some reason doesn't work by just replacing the file, you might need to reinstall DirectX. Download it from the Microsoft website
|Bits & Version||File size||Zip file size||Language||Description||Checksums|
|32bit9.15.779.0||2.3 MB||1.07 MB||U.S. English||797e24743937d67d69f28f2cf5052ee87d39afbf94675487a9ff7e41d2dbb8daedf7ad00||Download|
|Bits & Version||32bit9.15.779.0|
|File size||2.3 MB|
|Zip file size||1.07 MB|
|64bit9.15.779.0||3.79 MB||1.6 MB||U.S. English||faaa0bb9cd2905b25334132e5ba093ebd31aa0bd82d6c968b882c57091252190d74458a3||Download|
|Bits & Version||64bit9.15.779.0|
|File size||3.79 MB|
|Zip file size||1.6 MB|
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